Silver halide photographic light-sensitive dye containing elemen

Details Silver halide photographic light-sensitive dye containing elemen Silver halide photographic light-sensitive dye containing elemen

1990-09-07

1991-12-31

Brammer, Jack P.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Antihalation or filter layer containing

430581, 430583, 430588, G03C 184

Patent

active

050771868

ABSTRACT:
Disclosed is a silver halide photographic light-sensitive material which has a hydrophilic colloid layer containing at least one of the dyes represented by the following formulas (I) and (II): ##STR1## wherein R.sup.1 and R.sup.2 may be identical or different and each represents an alkyl group; Y.sup.1 and Y.sup.2 may be identical or different and each represents a group of atoms necessary to form a hydrocarbon ring together with the carbon atom at 3-position of indole ring; L represents a methine group; the dye molecule has at least three acid substituents; X.sup..theta. represents an anion; and n is 1 or 2 and is 1 when the dye form an inner salt, ##STR2## wherein R.sub.1 and R.sub.2 may be identical or different and each represents a substituted or unsubstituted alkyl group; Z.sub.1 and Z.sub.2 each represents a group of non-metallic atoms necessary to form a substituted or unsubstituted benzo condensed ring or naphtho condensed ring, with a proviso that R.sub.1, R.sub.2, Z.sub.1 and Z.sub.2 each represents a group which allows the dye molecule to have at least three acid groups; L represents a substituted or unsubstituted methine group; and n is an integer of 1-3.

REFERENCES:
patent: 4839265 (1989-06-01), Ohno et al.
patent: 4960686 (1990-10-01), Hawashima et al.

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